A bushfire is burning out of control near Kingaroy, north west of Brisbane as the state endures another day of heatwave conditions.

A number of fires were sparked late yesterday by dry lightning strikes in the South Burnett region and in the state's central west.

Superintendant Peter Hollier from the Queensland Fire and Rescue Service (QFRS) says no properties are under immediate threat.

"We've got teams that have gone out from the coast this morning very early to establish an incident management team at Murgon Fire Station to start attacking those fires to work towards bringing them under control," he said.

Favourable wind conditions this morning helped crews working on a bushfire on Bribie Island, north of Brisbane.

Incident controller David Brazel says 17 crews are on the job.

"Currently we have Forestry and QFRS resources blacking out around the fire edges," Mr Brazel said.

"We're hoping we won't be doing any active fire breaks or fire burns today - it's really consolidating what has been put in place previously."

Crews also remain at a fire at Tin Can Bay north of the Sunshine Coast.

Meanwhile, the weather bureau says Queensland's heatwave will continue into next week with many communities enduring their hottest conditions in decades.

Brisbane residents experienced their warmest night in seven years, with the temperature only dropping as low as 25.9 degrees.

Bureau of Meteorology (BOM) senior forecaster Michael Knepp says the heat could be even worse today.

"It will get warmer [but] a similar day to yesterday temperatures between five and 10 degrees above normal especially inland.

A severe fire danger warning remains in place for parts of the Channel Country and central west districts - and the far western parts of the Warrego district.

BOM says temperatures up to 47 degrees, relative humidity down to 10 per cent and winds up to 45 kilometres an hour are forecast.